GB/T 41631-2022 (English Version) PDF

Standard No.: GB/T 41631-2022
Language: Chinese, Available in English version
Release Date: 2022
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 41631-2022

Scope: This document specifies the specifications and test methods for unused mineral insulating oils for oil-filled cables in the delivery condition. These cables include hollow core cables, ducted cables and any other form of cable with oil flow provision. This document applies to mineral insulating oils obtained by distillation and refining of petroleum, with or without additives. This document does not apply to mineral insulating oils used in transformers, switches, capacitors and similar equipment, nor does it apply to chemically synthesized hydrocarbon insulating oils.

GB/T 41631-2022 Referenced Document

GB/T 10065-2007 Gassing of insulating liquids under electrical stress and ionization
GB/T 1884 Crude petroleum and liquid petroleum products--Laboratory determination of density--Hydrometer method
GB/T 261 Determination of flash point—Pensky-Martens closed cup method
GB/T 30515 Petroleum products.Transparent and opaque liquids.Determination of kinematic viscosity and calculation of dynamic viscosity
GB/T 3535 Petroleum products.Determination of pour point
GB/T 3536 Petrolem products.Determination of flash and fire points.Cleveland open cup method
GB/T 41146 Method of sampling insulating liquids
GB/T 507 Insulating liquids--Determination of the breakdown voltage at power frequency
GB/T 5654 Insulating liquids.Measurement of relative permittivity,dielectric dissipation factor and d.c.resistivity
IEC 60666 Detection and determination of specified additives in mineral insulating oils
ISO 3015 Petroleum and related products from natural or synthetic sources — Determination of cloud point
NB/T 42140 Determination of moisture content of insulating liquid oil-impregnated paper and oil-impregnated cardboard by Karl Fischer automatic coulometric titration
SH/T 0304 Electrical insulating oils.Detection of corrosive sulfur

2022 GB/T 41631-2022 Specification for unused insulating mineral oils for cables with oil ducts